Carly Rae Jepsen Is Dating Musician Matthew Koma

The “Call Me Maybe” singer, 26, has said she’s been in a relationship for more than a year, but failed to name her boyfriend. Sources reveal to PEOPLE her mystery man is musician Matthew Koma.

“He introduced her as his girlfriend,” a source told PEOPLE. “He seemed really excited about it, and she was smiling from ear to ear by his side during the introduction. He seems like a really nice and personable guy.”

The couple was also spotted holding hands in the lobby by a party guest at the GetGlue HD Launch Party at the Standard, East Village in New York City.

Later, Jepsen’s parents joined the singer and Koma for dinner at The Stanton Social.

“Many people recognized Carly and she posed for pictures with fans,” an onlooker at the Lower East Side eatery says.

Jepsen gushed to PEOPLE about her beau in May, but did not address him by name. “He makes me laugh every day and not always on purpose, but he’s my guy,” she said. “He’s been really amazing and very supportive.”

While Koma is featured on the electronic dance hit, “Spectrum” by Zedd, rock ‘n’ roll dominates on his debut EP, Parachute.